24 lines
453 B
JavaScript
24 lines
453 B
JavaScript
|
var baseSum = require('./_baseSum'),
|
||
|
|
identity = require('./identity');
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Computes the sum of the values in `array`.
|
||
|
|
*
|
||
|
|
* @static
|
||
|
|
* @memberOf _
|
||
|
|
* @since 3.4.0
|
||
|
|
* @category Math
|
||
|
|
* @param {Array} array The array to iterate over.
|
||
|
|
* @returns {number} Returns the sum.
|
||
|
|
* @example
|
||
|
|
*
|
||
|
|
* _.sum([4, 2, 8, 6]);
|
||
|
|
* // => 20
|
||
|
|
*/
|
||
|
|
function sum(array) {
|
||
|
|
return (array && array.length)
|
||
|
|
? baseSum(array, identity)
|
||
|
|
: 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
module.exports = sum;
|